The Cycleops Fluid Yellow Turbo Trainer with Speed Sensor is part of the Cyclopes no frills classic range of trainers. The Cycleops Fluid Yellow trainer gives you the essentials you need to try out indoor training anywhere you want. Its fluid progressive resistance matches your effort without putting out masses of noise so you can use the trainer in one room while your family watch TV in another. The Fluid Yellow trainer will work with all common adult bike wheel sizes & with most road bike & mountain bike frames. Although the Fluid Yellow Trainer is not a ‘smart trainer’ you can hook it up to virtual training software like Zwift using the Cycleops Speed Sensor (included in this kit). This will allow you to send data to programs like Zwift but not to get feedback in return. If you want to give indoor training a try but don’t want to break the bank on the latest smart trainer the Cycleops Fluid Yellow Turbo Trainer is a good choice. Features Fluid resistance unit provides a quiet & consistent ride. Progressive resistance offers the widest resistance range & road-like feel. Eccentric leveling feet allow for easy adjustment on uneven surfaces. Comes on a sturdy, foldable yellow frame. Adjust tyre fit to resistant unit with a convenient turn knob. Resistance unit roller allows for 700c, 26", 27" & 29" wheel sizes – up to a 2.0 tire. This trainer is designed to fit common road & mountain bike frames with included steel quick release skewer & is compatible with rear dropout spacing: 120mm, 130mm & 135mm.